The seismometer was two minutes ahead of the TV, so it was awesome to see that big signal show up and know.
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The seismometer was two minutes ahead of the TV, so it was awesome to see that big signal show up and know.

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these CATS are figuring out REFLECTION SEISMOLOGY with a HAMMER
James David Forbes Scottish physicist and glaciologist passed away on December 31st 1868.
Forbes was a physicist best known for his work on the conduction of heat, and on glaciology, he was born into a banking family and was taught by a home tutor and entered Edinburgh University at the age of 16, in the scientific fields he is well known for producing papers on both heat and cold, at first he hid hi love of science from his father, who wanted him to take up law, he loved his father too well to betray tastes and inclinations which might seem to point towards a different career.
After a year travelling Europe he returned to Scotland and was made a fellow of the Royal Society of Edinburgh at the age of 19. Forbes was held in great esteem throughout his life, winning awards and being made Professor of Natural Philosophy at the University of Edinburgh in 1833 before going on to become Principal of the United College, part of the University of St Andrews.
I won’t bamboozle you with all his theories etc, and if you’ve made it this far well done, the juicy part of this post is that James Forbes invented in 1941 a “machine”, still in wide use today, albeit a much more modern version, the seismometer or at very least his machine was the first to use that term
explainxkcd.com/wiki/index.php/2344:_26-Second_Pulse

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From the depths of my draft folder, including a dead link.
Is this a seismometer?
(USGS)
InSight: Sol 22 was seismometer deployment day, and it looks like round 1 of the robo-claw game went as planned. Once they're sure the seismometer's in a good location, they'll put the wind shield over it (it's the white curved thing behind the seismometer in a few of the photos), and after that it'll be time to deploy the heat probe and let it start digging. Image Credit: NASA/JPL-Caltech
Mars InSight mission